Finding the Fourth Proportional to 75,109.68, 103,644.36 and 44,889.04
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Solution
The fourth proportional to 75,109.68, 103,644.36 and 44,889.04 is: 61,942.69
Step by Step Solution
- Step 1: Write the proportion equation
75,109.68 : 103,644.36 = 44,889.04 : x - Step 2: Convert to fraction form
75,109.68/103,644.36 = 44,889.04/x - Step 3: Cross multiply
75,109.68x = 103,644.36 × 44,889.04 - Step 4: Simplify right side
75,109.68x = 4,652,495,821.81 - Step 5: Solve for x
x = 4,652,495,821.81/75,109.68 - Step 6: Final answer
x = 61,942.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.